Since the bottom slants pretty good 10 feet out, are the legs in the wheel portion adjustable for water depth? If so, how deep?

Wheels attach to the bottom of pipe ("legs") which is purchased separately as this length is determined by the depth of your water.

Does this dock also come in 4ft by 16ft size?

This Dock is only available in 4' x 10' sections.

Can I bolt these sections together? I wish to make a boat dock with a slip that I can cover.

Yes you can bolt sections together.

How much weight can the unit handle?

Each 4' x 10' Section has a weight rating of 1,500 lbs.

Can you fasten 2 frames together length wise to make a large firm platform (8 x 10)?

Yes you can easily put 2 kits together to make an 8' x 10' section.

How do you butt the 4' ends together to make a longer dock?

PlayStar's Aluminum frame Roll in dock are connected at the 4' ends by our unique Dock Connector Clips.

Do I need to remove my dock during the winter months?

Normal freezing and thawing will not damage a PlayStar Dock. However, docks are left in at owner’s discretion. No dock can withstand heavy ice movement.

You should consider the following factors:

    What has been the history of ice movement at your location?
    Do other dock owners in your area take their docks in or leave them out?
    Are there local restrictions or requirements?
    What kind of recreational activities take place around the dock during the winter?