Objective is to assess the guided bone regeneration in augmentation of horizontally atrophic maxillary ridge using collagen membrane with the new Sausage technique versus using titanium mesh. Material and methods: Two different Barrier membranes were evaluated with GBR ridge augmentation in maxillary atrophic ridge. 20 sites received GBR using native collagen membrane (group 1) covering 1:1 autogenous and anorganic bovine bone mineral (ABBM) bone mixture, and another 20 sites receiving GBR using Ti-mesh with the same mixture of bone. Results: Postoperative assessment for augmented cases revealed uneventful healing except for six sites in the ti-mesh group. There was a significant increase in alveolar bone width in both techniques at all different bone levels. Also, there were Significant difference between the increase of bone width in group one than in group two at 6months. Bone area percent was almost 28% for both groups and no evidence of reminants of collagen membrane were found in group1 specimens. Conclusion: Guided bone regeneration in augmentation of horizontally atrophic maxillary ridge using collagen membrane or titanium mesh with a mixture of 1:1 autogenous and xenograft are viable techniques before implant placement. Titanium mesh is a more technique sensitive and complicated procedure as compared to collagen membrane due to its high rate of postoperative complications.