Technical information Crab range

7 0 H é l i c r a b s p i r a l s t a i r c a s e • Follow the steps up to step 5 . • Fit the standards and ledgers. • Fit the 2.45 m diagonale braces on the outside and the 1.72 m diagonal brace on the outside . • Fit the flights of brace steps and the 1.00 m standard at the exit as in step 9 . • Fit the guardrail standard, angling it so that the lowest stirrup is on the outside. • Fit the MDS 0.70 m guardrail and lock it with the 0.70 m ledger. • Fit the 0.70 m Panangle and toeboard. • Fit the 0.27 m end post and the 1.72 m diagonal brace as a guard rail. • Continue from step 11 . Staircase attached to building. Straight exit. Landing after a flight of two steps 6 7 Staircase attached to building. Side exit. Staircase attached to building. Side exit on bracket or overhang. Other exits from three step flights Staircase attached to building with steps down to the slab. Compatible with Crab steel steps for the descent. Staircase attached to building. Wide straight exit with two Panangle on 0.70 m ledgers and stirrup rings. Guardrail using 1.00 m ledgers. Staircase separated from the building. Exit via a walkway. These examples of Hélicrab configurations are just a tiny fraction of the many possibilities. Our design offices will be delighted to help you with any technical questions. Other exits from two step flights Ensure that there is adequate headroom at the exits. 01.11.17 T e c h n i c a l i n f o r m a t i o n