There are now many types of raised access floors to choose from.
Structural floor lifting for existing room.
However you can usually remedy sagging problems yourself by sistering new joists alongside the existing ones this also works for stiffening bouncy floors.
Separate structural platform above the existing floor.
Heck there was usually only one game in town and your choice was often made for you.
We got muddy because we were in a dirt crawlspace doing just that crawling.
Power and data integration under your access floor in less than 2 inches what type of access floor should i choose.
Back in the old days things were a lot simpler.
This job took two people one afternoon.
Plan view of proposed mri suite.
Inspect your floor framing and measure the thickness of the existing insulation if any.
Cost time and skills.
3 multiply the total inches of insulation by 3 2 to estimate the existing r value of your floor.
If only it were that simple.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
The floor vibration control design concepts are presented below.
The inspection 300 to 500 will tell if you have structural problems such as undersized joists that will require professional repairs.
The elevated floor structure would span three structural bays of the building and be independent of all building elements except for beam connections to the building columns.
Total cost was less than 200 while a pro would charge 500 1000.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
Depending upon the conditions it is possible to strengthen or repair existing framing members such as floor joists or roof rafters by adding reinforcing material sandwiching the member on either side with plywood is sometimes worthwhile but the plywood must be installed correctly for greatest strength.