Adjustable Bottom U-Guide | Matte Black

20 reviews Size Guide

Collections: Barn Door Guides


This universal wall-mounted bottom u-guide is meant to keep your sliding barn door on track and functioning properly. An adjustable bottom track accommodates any door thickness—two options for install, with or with a bottom groove depending on your door thickness and preference.

The MJC adjustable door bottom guide sits perfectly flush against your wall and floor. No cutting or drilling is required if your door is 1-3/8 thick or less. A groove will need to be routered underneath your door for the sidewall to slide through for thicker doors.

Pair with an MJC privacy latch and transitional door pull to complete your setup!

*This product qualifies for Free Shipping on orders over $200: Ships in 1-3 Days

>Click Here to View All Available Barn Door Floor Guides<

Length: 1-1/4"
Height: 1-7/8"
Width: 1" up to 1-1/2"
Material: Carbon Steel
Surface Finish: Powder Coated

FREE Standard Ground Shipping on Orders over $200 for this Product -

This product is eligible for Free Shipping on orders over $200 delivered to the contiguous United States.

  • Handling time: 1-3 business days
  • [Free/Standard Shipping] Transit time: 3-5 business days

Note: Some larger quantity and/or custom orders may require longer handling and transit times.

*International shipping is based on total weight and is calculated at checkout.

All MJC & Company hardware is backed by our signature Lifetime Warranty. 

Barn Door Guide & Latch Instruction Manual

Soft Close Attachment Installation Video

Customer Satisfaction Guarantee

We fully stand behind our products' quality and want our valued customers to have nothing short of a fantastic experience. If your MJC hardware isn't quite what you were looking for, or for some reason arrives damaged or missing parts, shoot us a message within 30 days of receiving your order, and we'll work with you to make it right.

Customer Reviews
5.0 Based on 20 Reviews
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Filter Reviews:
Karena M.
United States United States
Great product

The handles and guides are fabulous. Good quality and look great.

Eric H.
Works great

Excellent for holding the barn door steady. I drilled the piece into a pergo floor on top of a concrete floor. Prevents your kids from pulling the door of the wall.

Stays in place

Works great. Keeps door secure. No more swing out. I have concrete floors and this attaches to the baseboard. Very happy with it.

Rail Size Chart
MJC & Company Logo | Sliding Barn Door Hardware Supplier


 Door Opening Size


Recommended Rail Size


24 In.

4.5 Ft.

28 In.

5.5 Ft.

30 In.

5.5 Ft.

32 In.

6 Ft.

36 In.

6.6 Ft.

38 In.

7 Ft.

40 In.

7.5 Ft.

42 In.

7.5 Ft.

For all other Door Opening Sizes, use this formula to find the Recommended Minimum Rail Length

(Single Rails Only)

(Door Opening * 2) + 6"

(Round up to the nearest half-foot)

For Bypass Systems, use this formula to find the Recommended Minimum Rail Length (Door Opening + 6")


Designer sliding barn door hardware | MJC & Company

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