![]() Once you’ve fastened the last, uppermost step in place, backfill around the staircase with well-compacted soil. Follow the previous three steps to build the remaining steps: cut two timbers and two short sleepers for each step and secure them with timber screws. Shovel gravel behind the step to enhance drainage and prevent erosion.ġ4. Use a drill to drive one screw through each end of every timber.ġ3. ![]() Fasten the timber steps and shorter sleepers to the long sleepers below with 12-inch-long timber screws. Cut and install two shorter 6×6 sleepers set them on top of and parallel with the lower set of sleepers.ġ2. Set two timbers across the sleepers to create the bottommost step in the staircase.ġ1. Be sure to cut the timbers long enough to span both sleepers.ġ0. Cut two timbers to length for each step in the staircase. Pin each sleeper to the ground by using a 3-pound sledgehammer to pound two ½-inch-diameter x 4-foot-long rebars through the holes.ĩ. Drill two ½-inch-diameter holes through each 6×6 sleeper position the holes about 6 inches from each end of the sleepers. Treat the cut end of the timber with wood preservative.ħ. Cut around all four sides of the timber, then finish the cut with a handsaw.Ħ. Use a circular saw to cut two 3-foot-long sleepers from a 6×6 timber. Space the trenches at least 3 feet apart, as measured from outer edge to outer edge.ĥ. Excavate the staircase area with a shovel and dig an 8- to 10-inch-wide x 3-foot-long trench along each edge of the staircase. Divide by 5½ inches-the height of a 6×6 timber-to find the number of steps in the staircase.Ĥ. Measure down from the mark on the stake to the driveway at the bottom of the staircase. Use 4-foot level and long straightedge to mark the height of walkway at the top of the staircase onto the wooden stake.ģ. Drive wooden stake into ground to establish height of finished staircase.Ģ. ![]() The more common sizes range from 6圆 to 8x8 in either rough sawn for a more rustic look with timbers that may vary in size a bit or in surfaced timbers that are planed down making them a half inch smaller but gives a cleaner more uniform look.In this video, This Old House landscape contractor Roger Cook creates a durable outdoor staircase.ġ. When used properly, timbers are both safe. Treated for ground contact, they are ideal for a variety of applications, including retaining walls, deck, playsets, landscaping, stair support posts, and walkways. Our Landscape Timbers are solid and are treated right lasting for decades whether treated for residential use in ACQ or MCA or CCA if for commercial use. These timbers are pressure treated in order to protect it from termites, fungal decay, and rot. ![]() These large timbers are nothing like the peeler core byproducts you may find elsewhere that will rot away after just a few years. Typical dimensions range from 3x8 to 8x8 and for stability and longevity, any of our treatment options are available CCA, CA-C, MCA, Pentachlorophenol or Creosote.įor over 35 years, American Timber and Steel has been supplying large, strong, top quality Landscape Timbers for landscape professionals everywhere to use for retaining walls, flower beds, raised gardens, parking bumpers, stairways, and to line driveways. The versatility of Southern Yellow Pine makes it ideal for many applications of Timber Lagging in highway, industrial and commercial applications being the strongest domestic softwood although the reliable Douglas Fir timber or the old standby Mixed Oak timbers are also available.Īmerican Timber and Steel can provide any timber specification in all grades from a low #3 to the highest grade of DS 65 or Select Structural and finishes as rough sawn or surfaced on all four sides. ![]()
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