If the tub is 8 foot square, the heaviest ones (Cal Spa) are just under 1500 pounds, and no more than 500 gallons.
The SouthernPine site has span tables for 150 lbs/ft joists:
http://newstore.southernpine.com/images/ref202.pdf
Who is asking the question? An investor?
It's impossible to guarantee a building's life.
Unless you can guarantee the viability of a society.
If you have societal breakdown all bets are off.
Aluminum siding has an outstanding lifespan, but not if a homeless person has a shopping cart, a...
Judging from client list and catalog offerings, this firm may be the authority on cable railings. http://www.secosouth.com
If you took a look at the allform site, practically none of their portfolio meets code for infill.
What is a lowloader? I don't think you are talking about a liftgate, are you? Liftgates use a wound spring and that spring might be a great place for you to start.
If you know what I am speaking of, go look at a liftgate or two.
My best guess is you are speaking of a 'beavertail' ramp for...
Are you sure you can't find a commercial product that satisfies your needs?
Cinder blocks are made of an extremely dry mixture that is vibrated and compressed into the molds. Extremely noisy, due to the vibrators being used. I don't think the cost-saving would be worth the effort of packing...
I think a 16" diameter would allow a welder to crawl inside and install plates to transfer force to the opposite wall.
He won't like it in there, but it's not a career.
What happens if you go larger diameter.
You can check the before/after floor deflection from below.
If you have a stud detector and can align the legs to sit directly over joists, do it.
If the flooring sags, the pool table will communicate the fact to you by failing to maintain a level playing surface.
I worked a year in the...
You could purchase 2 by 12s, 14 or 16 foot long and rip them into wedges.
Drill them for 1/4" threaded rod and 'string' them together to create ramps. One plank will create two ramps.
Depending on your taste, you can create two ramps and go with that, or you could create several ramps and then...
GeoPaveTraffic,
I agree with you about proximity to the wall, and whether the wall "squares off" the slope profile. If the wall was strictly a cosmetic attribute I wouldn't be too worried, but here the wall is being expected to keep the spa from sliding down the hill into the neighbor's deck...
Friend asks me to provide guidance on "moving a hot tub".
Turns out the actual "moving" can be accomplished with rollers. About 20 feet over level ground.
Unfortunately, that "level ground" abuts a freshly created retaining wall about 3 foot high, the wall itself resting on hillside. The wall...
If you gents don't mind a question:
Last time I looked at "extension service" documents on nails, screws and trusses, seemed like screws were rated at twice the pullout of nails.
As far as screws being brittle, it depends on the screws. Brass isn't brittle, and neither is the last batch of...
I would question the economic return on such a project, but here in the States certain legislators ensure the loyalty of voters by restoring the sandy beaches of vacation hotspots. This is not cheap, nor long-lived.
What sort of "surf" do you want?
If you want Surfer's Paradise waves, that's...
The only reason I could claim to know anything about this is the crash course I took upon myself when interested in a house with a buckled basement wall (block).
In theory, you would need to straighten the wall, and place #5 rebar in the cells (closer to inside wall) and then grout it. Or rely...
There are a few styles of franchised remedy.
One is to use deadmen plates in the surrounding soil and plates on the interior wall. They are tied together with threaded rod. Check the Yellow Pages, most likely you can get a quote over the phone...