
Threshold adjustment quite easy once I took the time to understand how the adjustment rod works. I have this to allow for a gap under my door. It helped but the bottom of my door is obviously quite wobbly and still not perfect. Just note that the adjustment will only effectively raise/lower one or both sides. For example, if you have a curved gap in the middle of your door, you can't adjust it so that it's higher in the middle. All in all, this is a well-made product and definitely worth the money.

ZEKOO 2.5-8FT Customized Style Interior Super Mini Sliding Barn Door Hardware Black Roller Rails Closet Cupboard Storage Cabinet Kit (2.5FT, Single Door Kit)
34 Review

Ensure Ultimate Door Security With Door Reinforcement Lock β Child Safety 4 Screw Lock For Inward Swinging Doors
41 Review

ZEKOO Bypass Sliding Barn Door Hardware Kit For Double Doors, Single Track, Flat Track Roller, One-Piece Rail - Available In 4FT To 12FT Lengths, Perfect For Low Ceilings (6FT Single Track Bypass)
34 Review

ZEKOO 6FT Single Track Bypass Barn Door Hardware Kit, Double Sliding Doors Overlapping For Low Ceiling
35 Review

Pack Of 1 Natural Wood Color 8 Ounce Bottle Gorilla Wood Glue
42 Review

32Oz Gorilla White Waterproof Patch & Seal Liquid For Effective Sealing (Single Pack)
30 Review

Silver Holographic Stars Glitter Grout Tile Additive 100G - Easy To Use For Tiles, Bathroom, Wet Room & Kitchen
14 Review

πͺ Bondic UV Liquid Plastic Welder - Fast Cure, Strong Adhesive Repair Kit for Home, Garage, Outdoors, etc. - Complete Starter Set (LED Light & Liquid Cartridge in Compact Tin Case)
9 Review