It may seem too obvious but it looks to me like it;s simply a calculation to determine the run based on number of studs, joists or rafters on 16" centre. eg. 17 joists (16 joist cavities) would simply be 16x16" = 256"/12" = 21'4" 6 joists (5 joist cavities) would be 5x16"...
joist yet. Move to the other side and do the same thing with the opposing rafter. Once the bottom of the opposing rafters are nailed to the top plate they will rest against each other and support themselves. Leave one carpenter there to balance them, especially if it is windy. Move down...
No notches are permitted in the center third of a horizontal ceiling joist or roof rafter R 802.7.1 also gives the maximum allowed horizontal distance from a supporting wall or beam, typically 1/6 of the ceiling joist or flat roof rafter length. End cuts are limited in the allowable depth ...
After laying out all common rafters the ceiling joists can now be placed alongside where the rafters are to be located. Depending on the pitch of the roof you may want to leave the end ceiling joist out until the hip rafters are in place. Erecting a Hip Roof Setting the ridge board is ...
Connectors, tracks and system for smooth-faced metal framing These connectors are capable of interconnecting metal framing performing all framing functions including, without limitation, floor and ceiling joists, top and bottom plates, roof rafters, roof rims, window sills, trusses, headers and wall ...
Typically, a ceiling joist spanning from opposite exterior walls connects the lower ends of the rafters, forming the base and completing the triangle. Collar Tie A collar tie is a horizontal element that connects two rafters. Collar ties are frequently employed as structural components, but they ...
With all the wood framing elements marked on the story pole, the next step was to incorporate the steel into the layout. The first horizontal beams were in the first-floor ceiling joist system, which was being framed with 18-inch open web truss joists. All the steel that was called out ...
As used herein, the term “roof support member” means any framing component that provides structural support to a roof of a building, such as a rafter, a truss or a horizontal ceiling joist. As used herein, the term “top plate” means the horizontal framing component (which may include ...
CATHEDRAL CEILING / ROOF SUPPORT REQUIREMENTS COMPRESSION BRACING for RAFTERS (Canada) DECK DESIGN & BUILD - home DECK FRAMING TABLES, SPANS ENGINEERED WOOD PRODUCTS FLOOR FRAMING & SUBFLOOR for TILE FRAMING AGE, SIZE, SPACING, TYPES FRAMING CONNECTORS & JOIST HANGERS FRAMING DAMAGE, INSPECTION, REP...