Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 08-22-2015, 06:22 PM   #1
Junior Member
ArkTerry's Avatar

Newmar Owners Club
Join Date: Aug 2015
Location: Jonesboro, AR
Posts: 16
Parking pad levelness?

Will be purchasing a 35' to 39' Gas class A soon, and am currently about to build a concrete parking pad in my backyard in preparation. I think from doing searches of old post here that I have a good feel for psi, site prep, rebar, etc...., but have a question on how level I should strive for.

The lay of my yard where the pad will be will automatically make long ways (front to back) an easy perfect level, but there is a mild right to left (side to side) slope, so I will have to build up the low side some. I will,want at least a slight slope for rain runoff of course.

My question is, since I am kinda new to the power level jacks of a class A, do I still need to try for as level as possible, or with a 15' wide pad, how much fall over that 15 feet would be alright for long term storage and use of slides etc...? 1 inch? 2 inch? 6 inch? More?

Thanks for any suggestions!

ArkTerry is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-22-2015, 08:29 PM   #2
Senior Member
Join Date: Sep 2012
Location: Yakima, WA
Posts: 360
Mine is alongside my home so I didn't want puddle and stuff. You coach will be forgiving of a little slope.

11 years ago, I specified 1/4" per foot away from my house, and the pad is 14' wide by 22' long.

I just went out and set my level under the coach. ( you can see the front wheels out of focus in the background). 1/4 per foot is what I still have, and I've been very happy. Not perceptible for the most part in the coach, and drainage has been fine.
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	76
Size:	148.2 KB
ID:	104316  

Civdiv99 is offline   Reply With Quote
Old 08-22-2015, 08:31 PM   #3
Senior Member
Join Date: Sep 2012
Location: Yakima, WA
Posts: 360
If it matters I think I went with 8" thick 6-sack mix. It's been stellar. I remain convinced the guy didn't charge me nearly enough.
Civdiv99 is offline   Reply With Quote
Old 08-22-2015, 08:40 PM   #4
Registered User
Tiffin Owners Club
Join Date: Mar 2015
Location: Southern NM
Posts: 909
That's an awesome level, never seen one like that
CJ7365 is offline   Reply With Quote
Old 08-23-2015, 05:47 AM   #5
Senior Member
Join Date: Apr 2015
Location: Rogers, AR
Posts: 254
I'm doing a pad next week, depends on where it is and what you want. Next to your house, as Civdiv99 did, the 1/4" per foot is good, that would be 3 1/2" for his 14' pad and is more than I would do, bot nothing wrong with it. I'm out in the back yard and side to side will be level, end to end will be about 1' over an 50' run. we will also have a metal bldg. on the slab and they say a minimum of 3'' over the length of the bldg., so our back yard is nearly perfect and will require min. grading. The jacks aren't something you should store the coach on, I now park mine on some 2x blocks to make it level while not in use.
alank is offline   Reply With Quote
Old 08-23-2015, 06:01 AM   #6
Senior Member
HD4Mark's Avatar
Winnebago Owners Club
Coastal Campers
Join Date: Oct 2009
Location: Cicero, NY
Posts: 2,748
If you have room I would suggest making it long and wide enough for a 45' MH. We had ours poured for our 31' class C thinking it was the largest coach we would own. Now our 40' class A hangs over in the rear
Mark & Nancy
2004 Winnebago Vectra 40KD
Shep dog, R.I.P. Kenzie dog Toad 2015 Jeep Wrangler Willys Wheeler
HD4Mark is offline   Reply With Quote
Old 08-23-2015, 06:28 AM   #7
Junior Member
ArkTerry's Avatar

Newmar Owners Club
Join Date: Aug 2015
Location: Jonesboro, AR
Posts: 16
Thanks for the replies! I was thinking something about 1/4 inch per foot would hopefully not be too much, as I prefer to have enough slope for good rain run off. Thinking good base of course and 6 inch 4000 psi at minimum.
ArkTerry is offline   Reply With Quote
Old 08-23-2015, 07:02 AM   #8
Senior Member
jdoc's Avatar
Texas Boomers Club
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Jul 2001
Location: Big Spring, Texas
Posts: 757
Send a message via Yahoo to jdoc
Built mine 10 years ago. My motor home shed is next to my house. It is 15x45x14 and 6 inches thick with wire and fiberglass in it. I had the contractor make it level. He screwed up and didn't order enough cement by 1/4 of a yard. Then to make matter worse when he knew he was short he put the low side next to my house. So, now when it rains I have a huge puddle of water next to my house. By the time he told me about it was to late to change it. But, it is really nice to have a place to keep the motor home out of the HOT West Texas sun.

Sounds like you have the everything under control. Even though it is not level on that one side, I still have not had to use the levelers in the 10 years it has since it was built.

Jerry and Janell & Westie dog Gus (Augustus McCrae)
Navy by record Marine by choice
2005 Bounder 38N DP 300 CAT 2014 Jeep Wrangler
jdoc is offline   Reply With Quote
Old 08-23-2015, 07:16 AM   #9
Senior Member
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,337
Our 12' wide pad is only about an inch lower (towards driver), and it drains fine. No need for the jacks to be down to feel reasonably level inside.
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
ahicks is offline   Reply With Quote
Old 08-23-2015, 07:52 AM   #10
Senior Member
Grey Ghost I's Avatar
National RV Owners Club
Ford Super Duty Owner
Join Date: Sep 2014
Location: Georgia
Posts: 586
My dw stated years ago that we could not afford a mh if we could not afford a roof over it. The 13 foot high carport type shelter cost us $1800.00. Money well spent as we stay in the mh sometimes between trips. I used sack mix to install pads for each wheel using a vial and hose water level to get the pads level with each other. The pads are 6" thick with a LOT of rebar. Surface area of each: 2' by 3'. I have been very satisfied with this setup. Almost forgot,,,,,the double width shelter allows walking room past slideouts on both sides.
Jerry and Barbara,
2005 Nat Sea Breeze 1321
2010 Honda CR-V toad
Grey Ghost I is offline   Reply With Quote
Old 08-23-2015, 08:42 AM   #11
Senior Member
Melmoses's Avatar
Tiffin Owners Club
Join Date: Aug 2010
Location: Montgomery, AL
Posts: 1,142
Our pad was supposed to have a slope as discussed above. The contractor didn't follow the written contract and made it perfectly level which I didn't discover until too late. He discounted his price for his mistake (it was in the contract) but that doesn't help me with issues related to that. It is 24' wide and nothing runs off of it. I have to contend with water standing under the coach with every rain. My levelers were rusting so I have to use jack pads under them and I also have to put pads under the tires. Then to top it all off, dirt, leaves and other stuff accumulate all over it. I learned a big lesson, a very expensive lesson, about contractors following contracts. Make sure the slope is there before the pad is poured, verify it yourself. Trust no one. Dealing with a mistake afterward is a lot of work and trouble.
Mel (Melanie) and Harry
2009 Tiffin Phaeton 40QTH
2014 Jeep Wrangler Sport
Melmoses is online now   Reply With Quote
Old 08-23-2015, 09:20 AM   #12
Senior Dude
Dogpatch's Avatar

Forest River Owners Club
Join Date: Sep 2010
Location: Somewhere, BC.
Posts: 5,574
Blog Entries: 8
I'm a General Contractor.

You can get away with 1/8" slope per foot and water will shed and leave your coach relatively level.
That's 1" per 8' run.
Put the slope side to side and away from outbuildings. That would give you 1-7/8" drop in a 15' wide pad and approximately 1" side to side lean in coach. That's livable.

If you use 1/4" slope, double all slope measurements above.

Personally, at 1/4" per foot, I think 3-3/4" slope is too much in 15'.
That would put your coach at a side to side lean of almost 2".
That's too much in my opinion and you would want to use leveling jacks.
Les (RVM12), Bonnie, Morgan and 4 leggers Bella & Bruce
2010 Forest River Cardinal 3450RL 40' Full Body Paint- 2015 Ram 3500 Laramie 6.7 ltr Turbo Diesel, 68RFE Trans. 4x4 SRW SB Pullrite 2900 18K FMCA-420438 Good Sam
Dogpatch is offline   Reply With Quote
Old 08-23-2015, 12:28 PM   #13
Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 3,964
I have had two parking pads at two different homes. I do not pour a pad. Instead I measure the wheel base. I then make 4 pads about two and a half by two and a half feet. I use 2/4 treated lumber and bricks. I frame the bricks with the 2X4's. Then I put down a gravel bed. All is perfectly level. There is no standing water because of the gravel. This has worked for me since 1985. The cost is minimal.
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
ga traveler is offline   Reply With Quote
Old 08-23-2015, 03:33 PM   #14
Senior Member
DD788Snipe's Avatar

Newmar Owners Club
Spartan Chassis
Join Date: Jun 2013
Location: Apple Valley CA
Posts: 771
Mine is 14'X50'. I put a 1% V to the center then put a 1% slope length wise that way the water drains to the middle of the slab then out to the street side of the slab. I never have any water standing around it even when I wash it at home.


Craig & Carolyn Roberts Apple Valley, CA
2006 Newmar 3910 KSDP 400 ISL Cummins Spartan Mountian Master Chassis
Toad: 2010 Chevy Colorado 4X4
DD788Snipe is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Parking Brake Lockup on Freightliner FRED TexasSkunk Freightliner Motorhome Chassis Forum 17 07-14-2015 02:30 PM
Parking Pad Info Needed Kitanigha 5th Wheel Discussion 5 06-02-2015 01:07 PM
5th wheel RV Parking area project PDXDave 5th Wheel Discussion 54 04-09-2015 05:47 PM
PowerGear jack control pad acting up. Advice ? Scooter National RV Owner's Forum 13 10-17-2014 09:33 PM
Driveline parking brake problems emeric55 Ford Motorhome Chassis Forum 2 09-29-2014 06:53 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:33 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.