![]() ![]() Just a 10-ton jack and a 4x4 to push up the existing beam. I am guessing that your existing beam is under the joists - is that right? That makes sistering in something a relatively easy option because then you don't need temporary walls to hold up the joists while you do the work. Replacing is nice in that you don't have to worry about wider or deeper beam and needing more space. ![]() Lee - Look at getting a full length beam in - either to sister the existing mess or to replace it. even an adjustable lolly column can be used.Īll of this should, of course, be checked with a structural engineer. Ive used a car jack to lift a sagging mid section. The same comapny can supply the beams, pre drilledīe sure to underpin the beam. Make sure that the steel plates extend at least 24" past both existing splices, a 48" steel plate basically then bolt with through bolts. The same company that supplies your lolly columns or steel I beams for your area can supply a 20'(+/-) flitch plate with bolt holes already drilled at alternating spacing.Īlternatly, you could sandwich two steel plates on either side of the sagging 2x's. Along with adding the beams you could splint the sagging beam as you mentioned though plywood would be useless where the loads ar so high, flitch a 1/4" steel plate to the sagging beam and then scab a 2x8 to the beam. If the LVL for that span is deeper than the existing beam and you cant afford the lower headroom, you could place two shallow LVL's a 3rd of the way across the ceiling so you would in effect have three beams running paralell to each other and perpendicular to the ceiling joists. No selling the house and moving is not an option. Or should I run carriage bolts all the way through all the pieces of wood? I'm thinking 5/16 X 4" or 5" lag screws with washers so they don't dig in. The new 2 X 10 would also be glued and screwed through the plywood into the existing beam. Obviosly plywood is only 8 feet long, but has great lateral stiffness. If I support it on one end with a cripple stud and make it a few inches shorter than the total span, then screw it and glue it to the existing beams will it provide the needed support or am I just wasting time and wood.Īnother option would be to cut strips of 3/4" plywood and glue and screw them to the existing beam and then add the new 2 X 10. I can sister on another board on one side pretty easily, but I can't make it span the full length because there would be no way to get it in place. Plus I still can't get in a full length beam. I'd like to replace the entire beam, but that will be considerable work and may cause additional damage leaving the ceiling joists unsupported. To add one on the second side I would have to completely remove half of my suspended ceiling, shortening all the tiles and the supports. Then adding an additional 2 X 10 along one side only. What I am thinking of doing is jacking up the beam to remove the sag plus maybe a little bit more. The ceiling joists are all 2 X 8's spanning half the width of the room with an overlap above this beam. Not tons of weight, but some weight nonetheless. There is a storage area above that part of the ceiling where we keep christmas decorations mostlty along with a few other odds and ends. ![]() When I measured it it was saging about 1-1/2" in the center. It was then that I noted a sag in the beam. As we were examining the beam I noted that the center board had also cracked about 3 feet away from the splice in that board. The three splices were all within the center 8 feet of the beam. All three of them had been made up of shorter pieces. They had nailed together a beam made up of 2 X 8's only none of themm were full length. During the discussion he noted that the beam supporting mny shop ceiling joists was had been spliced together. Since part of my house was made by the same builder we were comparing notes. He was telling me about some of the poor quality workmanship he had found during the demolition. We got to talking about the remodeling job he is in the middle of. Last night my neighbor stopped over so we could trim up a raised panel door I was helping him with. Well it isn't actually the sky, but my shop ceiling is sagging.
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