Copyright 2004 Martian Auctions

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SHED 36 Copyright 2004 Martian Auctions 154 Copyright 2004 Martian Auctions 155 Site Work Begin by marking out the building’s location in your yard. For a structure of this size, it’s simplest to build a lightweight frame that’s the exact size of the shed, then use the frame to mark the site. Use 3/4-in.-thick pine to build your frame. Cut the sides to the exact dimensions of the floor, and use one screw in each corner to fasten the sides into a rectangle. Screw a diagonal brace between
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     36    SHED   Copyright 2004 Martian Auctions 154    Copyright 2004 Martian Auctions 155    Site Work Begin by marking out the building’s location inyour yard. For a structure of this size, it’ssimplest to build a lightweight frame that’s theexact size of the shed, then use the frame tomark the site.Use 3/4-in.-thick pine to build your frame. Cut thesides to the exact dimensions of the floor, anduse one screw in each corner to fasten the sidesinto a rectangle. Screw a diagonal bracebetween two sides of the frame to hold it square.Clear the building site and level any obvious highspots. Place the frame in the site and adjust itsposition until you’re happy with the location ofthe shed. Drive stakes into the ground to markeach corner, stretch string between them (Photo1) and then remove the frame.Find the highest corner of the site and excavatefor the first foundation corner block. Plan onhaving 3 to 4 in. of block exposed above grade.Dig out an area several inches wider than theblock. Spread 2 or 3 in. of crushed stone in thehole to form a stable base for the block.Now you’re ready to position the first block,aligning its edges with the layout string. Checkthat the block is level across its length and width(Photo 2), and adjust the crushed stone asrequired.Use a long, straight 2 x 4 and level to check therelative height of the second corner, thenexcavate the site for the block. Check that thesecond block is level with the first (Photo 3), andadd the remaining corner blocks in the sameway. Use a wooden frame to find the best spotfor your shed. Drive a stake at eachcorner and use string to delineate the site.   Dig a hole for the first block at the highestpoint in the grade. Add gravel, install theblock, align it with the string, and level it   .Use a straight 2 x 4 and a 4-ft. level to checkthat the corner blocks are installed at thesame height. Copyright 2004 Martian Auctions 156    After marking joist locations on long frontand rear rim joists, install metal hangerswith 1-1/2-in. joist hanger nails.Lay the front and rear joists on the cornerblocks. Then, cut the joists, position themin the joist hangers and secure with nails.After doubling the front and rear joists,add the 3/4-in. plywood floor. Nail it inplace with 8d nails spaced about 6 in.apart. Building The Floor It’s a good idea to use pressure-treated lumberfor the floor joists. Cut 2 x 6 stock to length forthe front and back rim joists, and then lay outthe locations of the floor joists on 16-in. centers.Nail joist hangers to the inside surface of eachinner joist using 1-1/2-in. joist hanger nails(Photo 4). Next, place the inner front and backoists between the corner blocks, and then cutand position the floor joists (Photo 5). Nail thefloor joists in place, then attach the outer rimoists to the front and back of the floor frame.Compare opposite diagonal measurements ofthe floor assembly to check that it’s square. Nail3/4-in.-thick plywood to the joists for the shedfloor (Photo 6). Copyright 2004 Martian Auctions 157
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