It is with all of these things in mind that we have decided to show you what we think are the ten best non-comedogenic foundations. Somewhere in our top ten picks is a foundation that will work perfectly for you and your exact skin type-along with all of the problems that may go with it.
SPAN/LOADING NOTES. Deflection limited to L/360 live load & L/240 total load. Spans based upon a stair limits of 8 max rise and 9 min. run, governing building codes may be more restrictive. Contact National Lumber EWP Engineering for design. assistance on other stair stringer applications and/or loading.
Stringers designed for steps 150cm in height. Stair width can be varied by using different width decks for treads (1.09m, 1.57m, 2.07m). 10, 12 or 16 standard stairway towers can be con-structed, depending on require-ments.