The joist spacing required for composite decking will depend on:
* the strength of the particular composite decking material chosen * the dimesions of the composite decking material
16 on center
Spacing for floor joists is usually determined by building codes for the location
It depends on the joist thickess, spacing and load it is carrying. There is not a answer without more information.
Not knowing if the joist are in need of repair from rot (deterioration) or broken/damaged then replace ment of joist may be necessary. First get a replacement joist of the same or better species and treatment content and dimensions as the existing joist. Then cut the joist to the same length. You may have to cut a small angle on the bottom end of the joist to aid in working it over and between the girts and decking boards. Work the joist within a few inches of the joist to be replaced. Use a short 4x4 to drive the joist or a wood block to strike with a hammer. Take a couple of scrap 2x's and temporarily fasten to the girts and new joist to prevent movement. Then you may try a couple methods to remove the old joist. If the decking is fastened with screws then simply backout the screws. If it is nailed, then a 10 lbs. hammer can often remove most anything you need and is a great stress reliever but I recomend you use a reciprocating saw to cut the fasteners between the joist and decking. Usually the vibration of the saw and nails being cut will loosen the deck side of the fasteners and allow you to go top side and pull the old nail halves out. Once the old joist and fasteners are out you can carefully work the new joist in place. I recommend fastening the old decking to the new joist with properly coated screws or a hotdipped galvanized rink shank nail. Repeat joist replacement as necessary on other joist.
A joist note on a first floor plan would refer to the Joist below that floor, a joist note on the third floor plan woud be for that floor.
Standard wood floor joist spacing is 16" on center.
maximum spacing assording to IS 456 = 300mm
I don't understand your question completely, but I think what you are asking is how far apart support can be for a subfloor or floor decking. It will vary with the type of construction, but for residential housing it's almost always 16 inches between the floor joists. That would be measured from the center of the joist to the center of the next joist.
14ft to girder
Good rule of thumb (and most code books) state that the maximum overhang should be no more than one-third the total length of the joist. This provides two-thirds of the joist as support.
4"
That depends upon its use, snow load if rafter - location As a ceiling joist/floor joist only around 6' depending upon species of wood & grade Also depends upon spacing, 12" 16" or 24" OC
Plant spacing provides greater opportunity to plant leaves to receive maximum sun shine for photosynthesis.