Lumber Splicing
Lumber Splicing
(OP)
Splicing lumber with nails and two board on each side of the splice to either lengthen or to repair. How long should the splicing boards be and what is the number of nails required. I am looking for references






RE: Lumber Splicing
You should probably be looking for real world help, unless this is in a mechanical device, at which point real world help would probably be very much worthwhile in any case...
Good luck,
YS
B.Eng (Carleton)
Working in New Zealand, thinking of my snow covered home...
RE: Lumber Splicing
These are very general guidelines and you should make sure you check the stresses and if you have questions, check with a local structural engineer to check the analysis and code provisions.
Good luck.
RE: Lumber Splicing
DaveAtkins
RE: Lumber Splicing
RE: Lumber Splicing
This is possible, but the design standards which I am familiar with and/or have used (CAN/CSA, AS, NZS, BS, EN) either DO NOT permit this type of connection, or more commonly, severely penalize and apply high load factors with low resistance factors.
Good luck!
YS
B.Eng (Carleton)
Working in New Zealand, thinking of my snow covered home...
RE: Lumber Splicing
very, very low loads and small bending moments for a short time, nails are not the best solution.
Through-Bolted, with a splice plate on BOTH sides - and the splice plate glued/epoxied to the two wood beams, is
The glue prevents rotation of the plate against the wood at the surface.
The through bolts "compress" the wood beams over a wider area than bolts and washers (and much, much more than one-sided screws or lag bolts - both of which will loosen as the wood shrinks over time.) They carry shear load.
The moment loads are resisted by the area glued and the pins (bolts) on both sides of the splice.
How many bolts of what diameter? How thick/wide/long a splice plate? Depends on your loads. At least 4 bolts (two on each side of the splice) - probably more.
Maybe. 8<)
RE: Lumber Splicing