STEP 1: Start by placing the adjustable legs at mid-height: between the highest and lowest points. Place your table where you plan to use it. If you need to move it again one day, you'll have to relevel it.STEP 2: Once the table is in place, choose one of the long sides - this is what you'll use as your reference point. Adjust the horizontal position by placing the spirit level on the table, parallel to the long side, as close as possible to the side on the table top. Stand in front of the spirit level, choose one of the table legs (either the right or the left) to adjust it and bring the table up to level on this first side.STEP 3: Now that you have your reference point, do the same on the two short sides, making sure you don't move the long side.STEP 4:Once the two short sides are level, your table is ready! To make sure your table is as level as possible, go around the table once more (in the same order) to double check all the adjustments and repeat as necessary.Temperature changes will often cause the wood to warp. This is one of the main advantages of the stringers on the BT 700 table: they increase the stability of your table over time.