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BurbMan's avatar
BurbMan
Explorer II
Jan 20, 2018

Correct Size for Slide Topper?

I am in the process of repairing damage due to a leak around the slide seals and am considering getting a slide topper to keep some of the rain off of the slide when it's open. I didn't get a topper when I ordered the trailer back in '07 because the salesman said they flap a lot on the wind.

Most of the slide toppers I see on rigs are just a couple inches wider than the slide itself. So, my slide is 12' 8" wide and a 13' topper would give me 2" on either side as overhang. I'm considering going to a 14' topper, that would give me 8" on either side of the slide as overhang. I have the room on the TT sides, there is nothing that would be in the way of installing a longer topper. My thinking is that the longer side overhang would provide better rain shielding for the top corners where the seals meet.

Are there are drawbacks to installing a longer slide topper that provides 8" of overhang on each side?

4 Replies

  • Remember, SLIDE FABRIC will be 6 inches SHORTER than the slide length as specified. So, if you look at a 13 foot slide cover, the FABRIC will be 12 foot 6 inches. Doug
  • The arms that support the roller on the outside wall of the S/O only extend outward from the edge of the S/O's roof so far. So you really cannot use an awning that is a lot wider than the slide itself.
    When you order the unit, they will have directions on sizing. You'll want to follow those to the letter.
    I have installed several of them and still believe they are a good idea unless you only camp where it's very windy.
    Also, by adding it yourself rather than buying it with the RV, you will probably end up with a much nicer unit. The manufacturers have access to really junky models that you and I cannot buy. I have two of those junkers on my new trailer!
    My one piece of advice in installing these is to do so with as much of a slope as is possible. They shed water, wont "pool" and work far better that way.

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