You can fix it to the wall with two screws, you don't need to punch holes in the floor, and you don't need to slot your door. The front and rear wheels protect your door panels, and the auxiliary wheels at the back are on the back wall of floor guide.
eBay
Sliding Door Hanging Rail Invisible Sliding Door Guide Rail Damping Buffer Sliding Door Track Pulley Complete Set Of Hardware
Aliexpress UK
Compact: barn door sliding floor guide is small and lightweight, this design is more space-saving. Suitable for barn sliding doors, bedroom doors, etc. Barn door sliding floor guide is suitable for a wide range of door sizes.
eBay
1pcs Sliding Barn Door Bottom Floor Guide Clips Adjustable Sliding Door Floor Guide Universal Door Guides Slotted Swing Stop
Aliexpress UK
Rust Proof Sliding For Closet Door Roller Set Wheel Runners for Smooth Operation. Sliding Door Lock Mortise Lock Handle Recessed Handle Latch Door Lock 15.8 cm. Door Hinge Jig, Cabinet Door Installation Positioner Tool for Most Cabinet Doors.
eBay
Heavy Duty Floor Guide Flush Bottom Design Sliding Barn Door Floor Guide with Adjustable Roller Wall System Sliding Door Guide
Aliexpress UK
Stylish : The floor guide rail of the barn door is made of durable aluminum alloy with black spray painting, creating a secure and stylish look for your sliding closet door. Secure Stylish: The practical of this barn door floor guide ensures a secure and stylish solution for guiding your sliding closet door, bringing both functionality and style to your space.
eBay
LWZH Adjustable Sliding Floor Guide Rail Stopper Black Wall Door Bottom Guide For For Sliding Barn Door Rail Accessories
Aliexpress UK
4x Barn Door Guides. Provides silent and effortless sliding, will not disturb you and your family. Fully adjustable floor guides that can be used with most door thickness. - The Compatibility Is Just For Reference.
eBay
6pcs Adjustable Floor Guide Kit Barn Door Guides Screws 4.5 X 2 Cm Plastic L-Guide Replacement For Sliding Barn Door Hardware
Aliexpress UK
The front and rear wheels protect your door panels, and the auxiliary wheels at the back are on the back wall of floor guide. This can reduce the distance from the door panel to the wall and make your door panel fit the wall as much as possible to achieve a beautiful effect.
eBay
8Pcs Stainless Steel Barn Door Bottom Guide Floor Bearing Retainer Sliding Door Rail Guides Antisway Roller For Closet Barn Door
Aliexpress UK
Single Cylinder Deadbolt, Round Deadbolt Lock with Keys, Modern Door Locks New. Floor Guide Adjustable for Sliding Barn Door Bottom Roller Guide Wall Mount New. Barn Door Lock 90 Degree Luminous Sliding Door Latch Lock Heavy Duty Zinc Black.
eBay
CCJH Sliding Barn Door Adjustable Floor Guide Wall Door Bottom Guide 1pc Simple Type Suitable for Single Door Easy to Install
Aliexpress UK
35mm Hinge Jig Drill Guide Wood Hole Cutter Kitchen Door Cabinet Drill Locator. Solar Panel Mounting Brackets Adjustable Angle ABS Tilt Mount Fixing Wall Roof. Golf Ball Pick up with Tube Holds 70 Balls Golfing Accessories Training Hot UK.
eBay
Pocket Door Embedded Sliding Door Sliding Door Sliding Door Side-mounted Invisible Pull Handle Door Aluminum Alloy Buckle Handle
Aliexpress UK