Pine tree spacing calculator. Dec 30, 2022 · Here is the apple tree spacing guide.

Unfortunately, so far there is no GIS facility Initial spacing in radiata pine (Access: unrestricted) Wink Sutton, May 2007 Recent silvicultural improvements, such as seed source – almost all seed now comes from seed orchards – nursery practice, tree handling, planting methods, weed control and the adoption of regimes… Toppling – further advice and insights (Access: unrestricted) Nov 13, 2022 · When planting large trees such as oaks and maples, consider spacing them at least 15 feet apart (5 metres), unless your property has an established tree canopy that provides sufficient cover. For existing trees, if the spacing varies widely, you may just need to walk out the acre and count. Before you plant, it is important to know what the tree will look like as it nears maturity. Twist and push the handle forward to close the top of the slit to hold the seedling in place. preferred species b. You can use the arborvitae spacing calculator to measure the triangular spacing between the plants. A 60-year-old sugar maple tree can grow 15,000 leaves that can capture 8 pounds of carbon and produce 12 pounds of oxygen. Dec 30, 2022 · Here is the apple tree spacing guide. Just enter the values listed in the fields below to give you an approximation of how many feet of lights you will need to light up your tree. Planting trees too close together can lead to competition for resources, resulting in poor growth or even death of the plants. It has soft, bluish-green needles that are arranged in groups of five, and a distinctive cone-shaped crown. Planting rates from 100 to 400 trees per acre are typically recommended for planting a silvopasture system. Long leaf pine straw ranges in length from about 10″ to 13 Table 1. Slash pine straw typically ranges from 5″ to 7″ in length. More room to grow means more resources (water, light, and nutrients) to support the growth of roots and needles. Make at least two cuts to the full depth of the spade at right angles to each other. Radiata pine can be susceptible to root-rot if the ground becomes waterlogged. 5 feet (1. Its target audience is primarily the small woodlot owner wishing to calculate a rough estimate of the volume and log product Oct 21, 2018 · In a loblolly pine spacing study (Amateis and Burkhart) that compared planting densities from 2,272 TPA to 303 TPA, this density was shown to have the highest total volume of all spacings by age 20. May 12, 2022 · The tree spacing calculator can be a useful tool for estimating how many trees you need to plant. For larger pine trees, a spacing of about 10-20 feet is suitable. Welcome to the i-Tree Planting Calculator! This tool helps you estimate the long-term environmental benefits from a tree planting project in terms of carbon dioxide , air pollution , stormwater impacts, energy savings, and canopy cover . Here are some common traditional spacing distances for apple trees: Dwarf apple trees: 8-10 feet apart. . Nov 1, 2023 · Tree type — you can choose between mixed, oak, Douglas fir, red maple, loblolly pine, American beech, common birch, and sugar maple. 00545415391 = 1. Total lighted feet will be approximately 56' for the trunk and four branches. 4 metres square – approximately 1,700 trees per hectare. 1 day ago · Spacing is the distance between a given tree and its neighbors. 14) x radius squared (r²). Calculate The Value Of Tree Saplings Using The Woodlot Estimator. Let's compute: Maple tree value = 17 in × 16 ft × 2. Once this information has been provided, we can estimate the number of products, sizes, lengths, and spacing for posts, rails Dec 1, 2022 · Use this equation to learn how to wrap a tree with lights: 4'H trunk / 3" spacing = 16 x 2' circumference = 32' of lighting. 3) For design parameters, refer to figure 6. Straw America offers Slash and Longleaf pine straw. Closer spacings restrict some equipment accessibility and can potentially reduce forage production if trees are not thinned and pruned in a timely manner. The calculator is a much-updated version of the original spreadsheet radiata pine calculator developed by the late Leith Knowles, who many NZFFA members will remember fondly. A face cord measured 15 inches wide Jul 30, 2021 · Space your pear trees 20 feet apart. Add 1 to this value and round up the answer to the next whole number: 7. 66 m: Mahogany: 25 ft: 7. While joists provide a horizontal support system for deck boards, beams provide support for the joists. Click 'Calculate' to receive your spacing recommendations. Species. Pine Straw Types. Suitable Planting Range. Fill in any two fields and this tool will calculate the third field. The formula essentially treats the tree as a cylinder in order to roughly approximate its volume. divide the total basal area by the tree basal area to get the number of trees per acre. In spruce-pine-fir, No. If you select an option that has the same underlying value as another option, both (all) will be marked. Tree spacing calculator that is accurate. Feb 26, 2024 · A pine tree weight calculator utilizes advanced algorithms to estimate the weight of a tree. These parameters are used in complex calculation algorithms to determine the approximate weight of the tree. This is my balusterRequiredmsg element. We recommend planting Leylandii, Laurel and most other evergreen shrubs* between 60cm and 100cm apart (approximately 2-3 feet apart). It simulates the tree growth and the log products produced at a single clearfell age on a per hectare basis. By subscribing, you will receive stories illustrating the power of trees, the latest news and updates, and how we can make a positive impact together. Generally, plantation-style pine forests require at least 100 trees per acre, while natural forests can have anywhere from 10-60 trees per acre. 70. Verticle Spacing of the Lights. Follow the straightforward instructions below to quickly evaluate your tree's worth. 3'L branch / 3" spacing = 12 x 6" circumference = 6' of lighting per branch. Drag the Centers or Total Length slider to see the effect of double end members. This calculator also calculates the total cost of planting the trees. Exotic are doesn typically thinned and as such are spaced between 15 and 25 feets break depending on species. With this in mind, the joist span can range between 6 ft, 10 inches, to 18 ft. The wider row spacing tends to favor forage production over closer tree spacing. Tree Planting Guide. Planting Instructions – Planting instructions for various species. Aug 27, 2021 · Needle characteristics and average production per acre. The Forecaster Calculator is a simple forest simulation tool for radiata pine and douglas fir in New Zealand. May 21, 2018 · Fence 1: we are planting 4 trees spaced 33′ apart and alternating between silver maple and paper birch. The tree and its branches are cut into manageable sections that can be fed into the machine. 109½” ÷ 5½ With Exact Spacing, if the 2nd to last member runs into the end member, the 2 end members combine (double members). For smaller trees and shrubs, consider closer spacings of 10 to 12 feet (3 to 4 metres) between each individual plant. If you’re planting a hedgerow, the whips can sit just 30cm apart – but these will be planted over a much more compact The trees are planted at a spacing of about 4 to 7 meters to allow enough room for growth and latex production. 5". If you want to form a very tall hedge (5m or taller Welcome to the. 40625 ≈ 9 floor joists. They will slice off trees near ground level at a 45 degree angle, killing them. Select your wrap calculator below. Hedges with plants 60cm apart “fill in” quicker than those planted 100cm apart but you get just as good a hedge in the long run at either distance apart. Norway spruce trees typically require spacing of about 10 to 15 feet apart when planting. 40625. 00545415391. free of injury and disease d. In the fields right below, you can input the picket width and the picket spacing. We recommend using C7 bu. Determine the total number of deck posts ( N) you plan to install. Cost Share Programs. These long-lived trees survive from It is most valuable as a landscape tree to sequester carbon in urban environments. 50. Leith also developed a Douglas fir calculator. S. Seedling Spacing/Trees Per Acre. 5″ railing length and divide by 5½”, e. 3 meters) above the ground. The tables shown here are excerpts from the hem-fir, Douglas fir-larch, and spruce-pine-fir tables. Due to overstocking (700 trees/ac) on a small May 22, 2024 · A tree spacing calculator is a great tool to gauge how many trees you should plant. Application of this rule would leave approximately 80 square feet of residual 2 days ago · Let's say that our typical 10-year-old maple tree is 16 ft (ca. Poor Soils. Characteristics: White pine is known for its durability, resistance to rot and insects, and its concept of tree -to-tree spacing. Adoption of the wider spacings was to reduce costs and to allow a greater area to be planted with the same resources. Space Width: 0 1/8 1/4 3/8 1/2 5/8 3/4 7/8. The trees are being planted 6′ away from the fence. Horizontal spacing between individual balusters. i-Tree. Preferred Soils. 069 = 116 trees per acre. Row land double space softwoods 6 foot apart with an initial planting with the intent of thinning every second tree for pole wood. Basic Spacing Guide The Trees Per Acre Calculator is a user-friendly online tool designed to estimate the number of trees that can be accommodated in an acre of land based on the specified spacing between trees. 1/No. Home - i-Tree Planting Calculator. This guide describes the use of tree thinning in even-aged shortleaf pine stands. Generally, smaller pine trees should be planted at least 6-8 feet apart, while larger trees should be planted 10-15 feet apart. straight stem Apr 3, 2022 · The ideal spacing when planting white pine trees ( Pinus strobus , USDA zones 3-8) is 20 feet, but this recommendation can vary, depending on cultivar and whether you're growing trees as landscape specimens or en masse for timber. Input the tree's measurements: height, circumference, and age. Description: White pine is a tall, straight tree that can grow up to 230 feet (70 meters) in height and up to 4 feet (1. If you will be planting only shrubs enter a shrub to tree ratio of 1:0. Planting. A native, mixed woodland could contain around 1,600 trees per hectare, as these larger species will need to be well spaced to allow for their broad mature canopy, while a ‘tiny forest’ will be planted much more densely. calculate the basal area of one tree. 8m, 2. Christmas Light Calculator. Let's start with the "Garden grid" option: Select the type of grid: square, rectangular, or triangular. If you are planting a densely packed field of pine trees, they should be planted around 5 feet apart. Plant Calculator. Nov 8, 2023 · *pine trees* knitting patternsChart unfinished Pine tree volume. Best growth in Coastal Plain on soils with poor surface drainage, a deep surface layer with a firm subsoil (clay layer) within 20 inches of the soil surface. Use this tool to determine: How many plants do you need to cover a specific area? Use the fence post calculator to calculate the number of posts needed for your fence once you determine the heigh and length of the fence. After planting, the Rubber Trees are cared for through practices such as weeding, fertilization, and pest and disease management. To use the Deck Post Spacing Calculator effectively, follow these simple steps: Measure the length ( L) and width ( W) of your deck in feet. List of Certified Tree Planters. refer to the shortleaf pine data in table b. Simply enter the tree caliper and the height to calculate the value of a pine tree. Use this handy tool to help estimate how many light strands you will need for your display. Pergola Rafter Spans for 600 mm and Use this tree calculator if you have a farm or a bigger property where you want to plant as many trees as possible. Before planting, develop a written reforestation plan and In general, the recommended distances between trees can vary from 10 to 50 feet or more. Pull back on the handle to close the bottom of the planting hole. We want to stagger the trees so the first tree is 6′ from fence, 2nd tree is 8′ from fence, 3rd tree is 6′ from fence, 4th tree is 8′ from fence. Stand Age. If you are planting to create a windbreak, the spacing should be between 8 and 10 feet. Height of the Tree. The calculator then provides an output The distance at which to plant pine trees should depend on the size and species of the tree. This means you should leave a minimum 15-feet of space between trees. Currently sold in standard square bales and round bales. Tips for resilient longleaf pine straw production. Another consideration when deciding to rake pine straw is the age of the stand. Mar 11, 2024 · A joist span calculator is a valuable tool used in construction to determine the maximum distance a joist can span without sagging or compromising structural integrity. Available space is probably the consideration most overlooked or misunderstood when deciding what tree to plant. Woodlot tree saplings can be identified as trees between 20 and 50 feet tall with a caliper (diameter) of between 5 and 8 inches. 4m). 5" = 118. For shrubs, the formula differs a bit. View our Tree Wrapping Guide for step by step instructions. If you will be planting only trees enter a shrub to tree ratio of 0:1. Mar 7, 2024 · Our Tree Spacing Calculator is incredibly user-friendly. Pine is an ideal type of Christmas tree because of its flexibility. For example, we would take the 109. Using Table 1, the average square feet of basal area is 105 -- halfway between a 100 square feet basal area with 287 trees per acre and a 110 square feet basal area with 315 trees per acre. 44. To calculate the appropriate distance between trees, use our tree spacing tool. Pine. Trees that are too crowded cannot get enough resources, and ultimately their health and vigor decrease (and susceptibility to pests increases). where: \text {dbh} dbh — The diameter at breast height in inches. 5" / 16" = 7. 5m, 1. Growth chartPine stump Tree trees identification leaves pine identify shrubs species types garden chart evergreen leaf identifying guide plant between plants shape nativeFruit tree spacing The number of pine trees per acre depends on the species of pine tree and the desired outcome. Trees left after spacing should combine as many of the following characteristics as possible: a. Piedmont and Coastal Plain. Its target audience is primarily the small woodlot owner wishing to calculate a rough estimate of the volume and log product The Ultimate Guide to Growing Christmas Trees: Expert Tips and Techniques. Note: This article is a comprehensive guide to growing Christmas trees for profit. Calculate how much your tree is worth; choose tree height, tree diameter, tree type and press calculate to learn the value of your tree. dominant or co-dominant tree c. 2 2×10 or 2×12 would do the job. National Tree Benefit Calculator shows you the monetary The average dbh of the stand is 8 inches and 300 trees per acre. DOUBLE-ROW PLANTINGS Apr 25, 2023 · For example, if you are planting trees to create a wildlife habitat, you should leave between 15 and 20 feet between each tree. Your final calculation is: 43,560/ (tree spacing x spacing between rows). Smaller pine trees can be spaced about 5-15 feet apart. Push the dibble bar down to the full depth of the blade. Triangular Spacing: The other method is Triangular spacing, and you need to place the plants in the corners of an equilateral triangle. 1 day ago · A tree-planting agreement should include specific provisions covering these items: acres, price per acre, species, seedling sources, spacing, and planting methods; time of planting (preferably a starting and ending date); insecticide, fungicide or root-dip requirements—for example, dipping pine seedlings in an insecticide for pales weevil Jul 12, 2024 · This picket fence calculator is a simple tool that can quickly help you estimate the number of pickets you need for that fence. Page 1 of 2. Maple tree value = $663. Pine straw raking can begin in young stands at full canopy closure, ranging from 6 to 10 years of age based on species. This spacing allows each plant to have sufficient room in the ground to grow and develop a healthy root system without competing with neighboring trees. from $29. If you want triangular spacing, then you need to place the plants on the corners of equilateral triangles (equal distance apart at 60 degrees). 2 on pageTree spacing (trees forum at permies). For semi-dwarf varieties, which can grow up to 12 to 15 feet tall and 10 feet wide, provide 12 feet of space between each tree. If a species grows to 30-feet, use 30-feet of spacing. (24 – 30 m) high. To find the spacing between the trees, divide one acre (43560 square feet) by the amount of trees; 43560 ÷ 116 = 375 Example: 100 feet of landscape ÷ planting trees 8 feet apart = 12 Green Giant trees you will need for that space. 4 metres – approximately 2,200 stems per hectare, and even to 2. Jan 8, 2024 · A stand management prescription will specify the species, densities, and conditions of trees to be left after spacing. Right Tree in the Right Place. Calculating trees per acre is easy if the spacing between the trees and the rows of trees is consistent. Semi-dwarf apple trees: 12-15 feet apart. Step Four: Calculate the Number of Balusters/Spindles Needed. In this wood beam calculator, we'll perform wood beam deflection calculations, consider a wood beam's adjusted allowable design values, and compare them to the actual bending and shear stresses it has to support. Standard and own-root apple trees: 20-30 feet apart. It doesn't matter if you want to calculate oak or pear tree spacing - use the tree spacing calculator to figure out how many trees you can grow in your farm field or garden while providing them with enough sunlight, water, and space for roots. These practices are crucial for the trees' growth and productivity. 75 times the tree’s diameter (in inches). Fruit trees can be particular about placement and soil quality, so plant your fruit trees accordingly. Plug these values into the formula: DPS = (L – W) / (N + 1). Pine tree identification. For open rooted radiata stock use a strong planting spade with a blade at least 30 cm long and 15cm wide. Planting densities can also range depending on the age and size of the trees. It is golden brown in color and provides and economical answer to your landscaping needs. I. Proper spacing is also important for air circulation, which helps mitigate the spread of pests and diseases. , pi or 3. The basic value of a maple tree is 2. Use our calculator above to determine the proper joist span for consist of trees spaced about 8 to 12 feet within the row and 16 to 30 feet between the rows. Give the trees room to grow. The key to applying the Trunk Formula Method is determining the diameter of the tree in question. 2 days ago · Table 2. 2 and 3. 43 ft) up from the highest point of ground at the tree's base. An on-line version of a new Douglas fir calculator has also been developed. e. How It Works. Circumference, measured at 1. This is an i-Tree powered tool. No matter your experience level - from established agriculturists to novice growers - this comprehensive guide will offer invaluable advice and strategies to propel you towards success in the profitable business of Christmas tree farming Aug 8, 2022 · Divide this total into the square feet in an acre, which is 43,560. Range of returns from planted loblolly pine. 5 m) high and 17 in (43 cm) circumference. It grows in almost any planting zone, which is great news regardless if you live in a warm or cool climate. Calculate Chain Link Fence Posts: Stronger than wood, chain link fence posts can be spaced farther apart than wood posts. Jun 30, 2022 · This wood beam span calculator will help you find the capacity of a wood beam and check if it can surpass any uniformly distributed linear load applied to it. It requires input parameters such as tree species, trunk diameter, tree height, and moisture content. For example, a 5-foot-tall chain link fence would typically feature post spaced 12 Calculate how many trees per acres. Trees may be grown in single rows or in aggregate rows called sets with wide alleys for for-. Input the area dimensions of your planting site. g. in. Your beams will need to bear the load of not only your decking materials, but additional components of the frame itself. 22, AS1684. White pines are fast-growing trees with soft needles and a blue-green color. 35 m (4. Member span is not suitable for rafter spacing greater than 600mm. Mar 7, 2024 · Step-by-Step Guide to Using the Tree Value Calculator. Select the type of tree from the given list. We'll calculate it's worth using a simple equation: Tree value = Circumference × Height × Basic value. A Sugar maple tree provides a natural bird habitat elevated high above the ground away from potential predators. The D × 2 Rule determines spacing (in feet) among crop trees to be 1. Triangular Spacing. This will give animals enough space to move around and build their homes. Straw production peaks at about 15 years of age. Jul 11, 2024 · You can figure out the plant spacing for your gardens and hedgerows using this plant spacing calculator. 2 days ago · The formula for calculating a tree's age is. Divide that difference by the sum of the on-center spacing of the floor joists: 118. 8 by 2. 2 So if the stand is to be grown until it reaches age 100, then it is even-aged The calculator is set at a default shrub to tree ratio of 3:1 (75% shrubs species to 25% tree species), but you can override this. You can also use this value in the tree diameter calculator later. Pickets' dimensions are often The ATPine fencing calculator will provide an accurate estimate of the materials needed to complete your project when you enter the information on the length of the project (in metres) and the height (1. Loblolly pine. With a few simple steps, you can quickly determine the ideal spacing for your trees, making your planting endeavors easier than ever. The National Tree Benefit Calculator was conceived and developed by Davey Tree Expert Co and Casey Trees. Jul 8, 2024 · Subtract the width of your floor joist from your floor's length: 120" − 1. That means you can have a tree ready to take to market in 6 or 7 years. 6 m: Maple Tree Oct 5, 2019 · A dogwood tree, for instance, grows to about 15-feet when it reaches maturity. The calculator tool below is designed to give an approximate number for feet you will need for lighting up a tree. Young radiata may be palatable to possums which should be controlled with poison, trapping or shooting. Larger sections are split much like firewood so they will fit into the pellet mill feeder. Using the left-hand portion of the column, a thinning to achieve optimum growth could be conducted to reflect a final space of D + 8. They also grow quickly, at roughly one foot per year. Figure 1: Typical layout diagram showing alley width, row spacing, and tree sets for establishing a silvopasture system in existing pasture. A stand is considered even-aged if the difference in age between the oldest and youngest trees does not exceed 20% of the time between establishment and planned regeneration harvest. Loblolly Pine: 12 ft: 3. You’ll gain no advantage by planting more trees per acre—you’ll spend more for poorer results. 2. Select the tree species from the dropdown menu. Planting, economics and management. It is easy to get these estimates! Soon after the large scale plantings began in the late 1920s the initial spacing was extended to 1. Instead, we will use the wood pellet estimator to calculate how many 40-pound bags of wood pellets can be harvested from the dirt-free part of the tree. building codes mandate that balusters have no more than a 4-inch gap between them. Evergreen Tree. A joist span calculator calculates the allowable distance between joists based on factors like wood species, joist dimensions, spacing, and load requirements. Deck beams and joists go hand-in-hand as the framing materials for your deck. For example, two 12-inch trees to be left should be separated by 24 feet (12 × 2 = 24). For example, a stand of Ponderosa pine (S. 40625 + 1 = 8. Dwarf varieties grow eight to 10 feet tall and spread just seven or eight feet, so they need eight feet of space between each. This calculator takes the guesswork out of tree density calculations, providing landowners and environmentalists with a quick and accurate means of The planting design will provide specific details for the creation and management of a planting, including acreage, species, number of trees, layout of roads and fire breaks, nursery stock type, site preparation and planting method, spacing, arrangement and any post-planting maintenance. Deciduous Tree. First, select the type of planting you wish to plan: a garden or a hedgerow. This plant and landscaping calculator makes it easy to figure out how many plants you need, spacing, and coverage. Based on tree species and the planting area, obtain precise calculations. Figure 4 After determining what size lumber to use, turn to the tables in Design Values For Joists and Rafters to select a species and grade that meets the required Fb and E values. Eastern white pine cones are long and slender, growing to 6” (16 cm) long. Our calculator can work out the vertical row spacing (the blue line) given you know the horizontal and diagonal spacing (the plant spacing!): Planting pine trees too close together will lead to competition for light, nutrients, and water. Tree saplings can be cut for pole wood, wood pellet production and firewood. Harvested use will depend on tree type and species. Calculating the value of long length pole wood is suggested; about 40 feet – the length of the flat bed of a transport truck. The forecaster Calculator is a simple forest simulation tool for radiata pine and Douglas-fir in New Zealand. Pergola Beam Spands. Wind Classification 1 & N2. Leave a minimum space equal to half the shrub’s full growth size. A cord (half a bush cord) is 8 feet long x 4 feet wide x 4 feet tall and contains about 600 pcs of firewood. Straight rows make releasing easier. Deck Beam Span & Footing Size Calculator. The size/volume of the tree being appraised is calculated by using the equation π (i. Planting Calculator! This tool helps you estimate the long-term environmental benefits from a tree planting project in terms of carbon dioxide , air pollution , stormwater impacts, energy savings, and canopy cover . 2) * denotes 600 mm rafter spacing only. Tree Planting Guidelines for Reforestation Cost Share Programs. If you're stuck with an end gap that's too small, or double end members, try Adjust Both Ends Equally to open and spread the gap to each end. However, for a denser screen or windbreak, you may opt for a closer spacing of around 6 to 8 feet. Harvesting pine straw. If the species grows up to five B = DBH² * 0. Determine the width and length of the area you want to cover Dec 17, 2020 · Insert the dibble bar several inches in front of the seedling and push the blade halfway into the soil. The final step in finding how many balusters you need is to divide the railing length (minus the posts) from the first step by the combined baluster/spacing width from the second step. 2 meters) in diameter. Width of the Tree at the Base. Number of trees. Using the firewood calculator to calculate how much firewood is in a tree you will learn that it will take a tree with a trunk diameter of at least 18 inches to produce a full bush cord of firewood. Species–site selection guide. As you can see in the above diagram, there is a good amount of space between each Green Giant to have room to grow. PRO TIP: In order to be up to code, U. 125 ÷ 1. = 90) with an average dbh of 15” and an average distance between tre es of 19’ would have a D + 4 spacing (19 – 15 = +4). Our Tree Value Calculator is user-friendly and simple to navigate. 14² = 196 * 0. Pests and diseases. full crown e. Sep 10, 2023 · These are fast-growing trees and one of the tallest species of pines. Eastern white pines are a tall species and grow 80 to 100 ft. Follow these steps to find your tree's age using this formula: Measure the circumference at breast height ( cbh) of the tree trunk using a measuring tape at 4. Space Width. It can be helpful to mark out rows, eg with stakes, to guide planters. Consider its height, crown spread, and root space. Row Spacing = Plant Spacing Young radiata pine seedlings are palatable to hares and rabbits. Our calculator does. Trees should be spaced far enough apart that their roots do not compete for space, water and nutrients. Normally the plants are at 60 degrees to each other in the equilateral triangle. Notes: 1) Refer to general notes for information that is relevant for all span tables. The more space you give each tree, the larger it will get! However, the trade-off is time. The eastern white pine has soft needles that grow in clusters of 5. Calculate the result, which will be the ideal distance between your deck posts. 069 ft². Using this tool couldn't get easier: Begin by entering the total length of the fence you plan to build. Example 2: A forester installed 40 1/20 acre random plots across a 100 acre pine stand. Depending on the size of the deck itself, whether your joists are spaced either 12 inches or 16 inches from the center, and the framing materials and size of deck boards used, deck joist spans may vary. bv rb ci ch xb bl dx gg kt rr