The Home Depot offer trumps the rival bid for GMS by QXO, a construction-supplies company run by Brad Jacobs that recently purchased Beacon Roofing Supply for $11 billion. Earlier this month, QXO had made an unsolicited offer of about $5 billion, or $95.20 a share, for GMS. Home Depot’s $110-per-share offer is nearly 16% higher than that.

Home Depot ( NYSE: HD) has not confirmed that it made an offer for GMS ( NYSE: GMS ). For its part, QXO ( NYSE: QXO) said it would proceed with a hostile takeover and take the offer directly to shareholders if GMS management rejects its proposal. The Brad Jacobs-led firm issued a June 24 deadline for its offer.

Home Depot said on Monday unit SRS Distribution has agreed to acquire specialty building products distributor GMS for about $4.3 billion, stepping up its efforts to capture more demand from professional contractors.