pressure treated dimension the basic building block of the better backyard. behold the backyard basic building block. from deck to pergola or swing set to adirondack chair, almost every project is going to call for dimension lumber think 2-inch lumber products .
beam span chart table. building codes for residential decks only require 40 psf. the longer the joist, the more area of deck the joist supports, and thus the beam supports. for pressure-preservative-treated southern pine no. 2 grade, there is a method that can be used for estimating beam spans for a preliminary design.
nominal lumber size dimensions and conversion chart by jeff sawyer on june 11, 2010 i n a way, it has always disturbed me that the lumber industry cant come up with a simple format for measuring their product.
a volume measurement of lumber, 1 board foot is equal to 144 cubic inches, to calculate multiply width in inches x length in inches x thickness in inches. measurements are rounded to next full inch. prices are usually given per thousand board feet. material is priced per running foot, according to width and thickness.
most the pressure treated here are 1-5/8 and 1/8' wider because of the treatment when green. you can get kiln-dried-before-treatment which are 1-1/2 after treatment, for more money. check your plans if a one story room addition on block, you can probably use 2x6 on the 6' block for 2x6 walls, 2x4 plate for 2x4 walls,
most the pressure treated here are 1-5/8 and 1/8' wider because of the treatment when green. you can get kiln-dried-before-treatment which are 1-1/2 after treatment, for more money. check your plans if a one story room addition on block, you can probably use 2x6 on the 6' block for 2x6 walls, 2x4 plate for 2x4 walls, whichever has been approved
pressure treated lumber is no stronger than untreated lumber. the difference between the two is that pressure treated lumber will resist the elements better than untreated due to chemical preservatives added, and so will maintain its integrity in conditions that would cause normal wood to rot. pressure treated lumber prices.
commercial lumber dimensions - american softwood lumber standards - nominal and actual sizes are indicated in the table below. subtract 1/4 inch for dimensions under 2 inches 51 mm subtract 1/2 inch for dimensions under 8 inches 200 mm subtract 3/4 inch for larger dimensions.
pressure treatments. most dimensional pressure treated lumber is treated to .25 or .40 pcf in acq. larger dimensional lumber 2×8 and above can be treated to .60 pcf with cca but only for use in certain commercial construction applications. we usually recommend .60 pcf cca or acq for freshwater use, ground contact, or extreme weather conditions,