JOIST (ISMB)
A joist is a horizontal structural member used in framing to span an open space, often between beams that subsequently transfer loads to vertical members.
Variations
| 100×60 | 350×140 |
| 125×70 | 400×140 |
| 150×75 | 450×150 |
| 200×100 | 500×180 |
| 250×125 | 600×210 |
| 300×140 |