DIYHD retailer Stainless Steel Sliding Library Ladder Hardware(No ladder)

Material:stainless steel;
Surface:brushed satin

Important:
Only hardware for sale,ladder is not included
Supper light&smooth during sliding
Not included floor roller(roller at the bottom of the ladder)

Max load retailer capacity is 150kg
“+” across screw strongly tight on the wall/cabinet
Q:What's the ladder's length should I make?
A:For example,the place where you want to install track's length is 6.6ft(from floor to the center of the tube). H=6.6ft(79")-1 9/10" Cos10°=0.9848 H1(ladder height)=H/Cos10°
Pls make a groove on the top of the ladder to countersunk install the rollers

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6ft/6.6ft ladder kit:
Roller*2,
Stop*2,
6ft/6.6ft track*1,
Track&wall connector*4(pre-fixed with track),
End cap*2
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8ft ladder kit:
Roller*2,
Stop*2,
4ft track*2,
Joint-in track connector*1,
Track&wall connector*6(pre-fixed with track),
End cap*2
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10ft ladder kit:
Roller*2,
Stop*2,
5ft track*2,
Joint-in track connector*1,
track&wall connector*8(pre-fixed with track),
end cap*2
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12ft/13ft ladder kit:
Roller*2,
Stop*2,
6ft/6.6ft track*2,
Joint-in track connector*1,
track&wall connector*8(pre-fixed with track),
end cap*2
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15ft ladder kit:
Roller*2,
Stop*2,
5ft*3,
Joint-in track connector*2,
track&wall connector*15(pre-fixed with track),
end cap*2