I'm not an engineer so all I can tell you is what I used and what worked for my project.
The vertical riser is a standard pine 2 x 12 cut to the appropriate length and angles. I did quarter round (router bit) this board top and bottom for looks and no "sharp" edges.
The steps were cut from a standard pine 2 x 10. My dimensions were 9 3/16" x 7". I did quarter round the top and bottom of the step with a router bit so the edges were not "sharp". The end of the step that was attached to the vertical riser was not rounded with the router, making a more flush fit.
I work for a company that works with galvanized steel so I made my own brackets. To attach the vertical riser to the floor I used 1 1/2" x 1 1/2" 6" long 90 degree angle of 16 gauge with 1/4" x 1 1/2" long lag bolts with anchors.
To attach the steps to the riser I used 3" x 1 1/2" 6" long 90 degree angle of 16 gauge with 1/4" x 3" lag bolts. The 3" part of the angle was attached to the underside of the step with 1" long lag bolts and the 1 1/2" was attached to the riser with the 3" long bolts. In addition to this I used a 1 1/2" x 6" long flat blank to help secure the step to the riser on the opposite side using the 3" long bolts. I think you may be able to see all the brackets and flat blanks in the photos.
I did use lock washers with all bolts. I did pre-drill holes for all bolts to minimize the wood splintering.
I hope this is helpful and good luck with the project. It is always neat when someone comments "Where did you get that?" and you can reply "I made it!"
The vertical riser is a standard pine 2 x 12 cut to the appropriate length and angles. I did quarter round (router bit) this board top and bottom for looks and no "sharp" edges.
The steps were cut from a standard pine 2 x 10. My dimensions were 9 3/16" x 7". I did quarter round the top and bottom of the step with a router bit so the edges were not "sharp". The end of the step that was attached to the vertical riser was not rounded with the router, making a more flush fit.
I work for a company that works with galvanized steel so I made my own brackets. To attach the vertical riser to the floor I used 1 1/2" x 1 1/2" 6" long 90 degree angle of 16 gauge with 1/4" x 1 1/2" long lag bolts with anchors.
To attach the steps to the riser I used 3" x 1 1/2" 6" long 90 degree angle of 16 gauge with 1/4" x 3" lag bolts. The 3" part of the angle was attached to the underside of the step with 1" long lag bolts and the 1 1/2" was attached to the riser with the 3" long bolts. In addition to this I used a 1 1/2" x 6" long flat blank to help secure the step to the riser on the opposite side using the 3" long bolts. I think you may be able to see all the brackets and flat blanks in the photos.
I did use lock washers with all bolts. I did pre-drill holes for all bolts to minimize the wood splintering.
I hope this is helpful and good luck with the project. It is always neat when someone comments "Where did you get that?" and you can reply "I made it!"
